traveller

From what I've read, the purpose of the traveller is to keep the main sail centered when close hauled. Okay, but: 1: The traveller on the C14 is not adjustable (unlike in something like a Laser), so what does it do then? 2: The traveller is connected to the main sheet, so even if it were...

My Laser 2 traveller is worn out and I'm replacing it, but this raises the question: should I be adjusting the traveller when I'm sailing? I have it set so the block is fixed on the centerline and can theoretically be moved up and down, but I've always just left it about a foot or so above the...